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Sequence containing itself (Posted on 2014-05-14) Difficulty: 1 of 5
The sequence https://oeis.org/A007953 is the sum of the digits of n.
1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,10,2,3...

Most terms of the sequence are 1 more than the previous term but some are not. The first two are shown in bold above.

Create the sequence of terms of A007953 that are not 1 more than the previous term.

Prove or disprove: This new sequence is the same as the original sequence.

No Solution Yet Submitted by Jer    
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  Subject Author Date
sketch of proofPaul2014-05-14 22:44:11
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